Frédéric Chopin / Piano Sonata No. 2 in B-Flat Minor, Op. 35, 'The Funeral March'

Recording identifiers

ISRC

US2BB1300029

Release date of the album this recording appears on

2013-10-29

CopyrightID (CopyrightChains transaction hash)

0x96e80399e0a1c69fd311dd77fd67a9517d8f3d0bbcd54158e9a6bec956038b13

Copyright registration time

2026-07-31T02:58:20+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T03:15:04Z

Bitcoin block

960340

Canonical record hash

sha256:53a563ae73e255a1038cc89ae5540be6b28ecc62d29805d6327203508d1e663f

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC US2BB1300029

What this proof establishes

This recording was released in 2013, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.